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30474043 = 191603897
BaseRepresentation
bin111010000111…
…1111100111011
32010100020112021
41310033330323
530300132133
63005055311
7520011415
oct164177473
963306467
1030474043
1116224666
12a257537
13640c9a2
1440939b5
152a1e52d
hex1d0ff3b

30474043 has 4 divisors (see below), whose sum is σ = 32077960. Its totient is φ = 28870128.

The previous prime is 30474019. The next prime is 30474049. The reversal of 30474043 is 34047403.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-30474043 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30473999 and 30474017.

It is not an unprimeable number, because it can be changed into a prime (30474049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801930 + ... + 801967.

It is an arithmetic number, because the mean of its divisors is an integer number (8019490).

Almost surely, 230474043 is an apocalyptic number.

30474043 is a deficient number, since it is larger than the sum of its proper divisors (1603917).

30474043 is a wasteful number, since it uses less digits than its factorization.

30474043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603916.

The product of its (nonzero) digits is 4032, while the sum is 25.

The square root of 30474043 is about 5520.3299720216. The cubic root of 30474043 is about 312.3513293884.

It can be divided in two parts, 304 and 74043, that added together give a palindrome (74347).

The spelling of 30474043 in words is "thirty million, four hundred seventy-four thousand, forty-three".

Divisors: 1 19 1603897 30474043